1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // soc-topology.c -- ALSA SoC Topology 4 // 5 // Copyright (C) 2012 Texas Instruments Inc. 6 // Copyright (C) 2015 Intel Corporation. 7 // 8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9 // K, Mythri P <mythri.p.k@intel.com> 10 // Prusty, Subhransu S <subhransu.s.prusty@intel.com> 11 // B, Jayachandran <jayachandran.b@intel.com> 12 // Abdullah, Omair M <omair.m.abdullah@intel.com> 13 // Jin, Yao <yao.jin@intel.com> 14 // Lin, Mengdong <mengdong.lin@intel.com> 15 // 16 // Add support to read audio firmware topology alongside firmware text. The 17 // topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 18 // equalizers, firmware, coefficients etc. 19 // 20 // This file only manages the core ALSA and ASoC components, all other bespoke 21 // firmware topology data is passed to component drivers for bespoke handling. 22 23 #include <linux/kernel.h> 24 #include <linux/export.h> 25 #include <linux/list.h> 26 #include <linux/firmware.h> 27 #include <linux/slab.h> 28 #include <sound/soc.h> 29 #include <sound/soc-dapm.h> 30 #include <sound/soc-topology.h> 31 #include <sound/tlv.h> 32 33 #define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */ 34 35 /* 36 * We make several passes over the data (since it wont necessarily be ordered) 37 * and process objects in the following order. This guarantees the component 38 * drivers will be ready with any vendor data before the mixers and DAPM objects 39 * are loaded (that may make use of the vendor data). 40 */ 41 #define SOC_TPLG_PASS_MANIFEST 0 42 #define SOC_TPLG_PASS_VENDOR 1 43 #define SOC_TPLG_PASS_MIXER 2 44 #define SOC_TPLG_PASS_WIDGET 3 45 #define SOC_TPLG_PASS_PCM_DAI 4 46 #define SOC_TPLG_PASS_GRAPH 5 47 #define SOC_TPLG_PASS_PINS 6 48 #define SOC_TPLG_PASS_BE_DAI 7 49 #define SOC_TPLG_PASS_LINK 8 50 51 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 52 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 53 54 /* topology context */ 55 struct soc_tplg { 56 const struct firmware *fw; 57 58 /* runtime FW parsing */ 59 const u8 *pos; /* read postion */ 60 const u8 *hdr_pos; /* header position */ 61 unsigned int pass; /* pass number */ 62 63 /* component caller */ 64 struct device *dev; 65 struct snd_soc_component *comp; 66 u32 index; /* current block index */ 67 u32 req_index; /* required index, only loaded/free matching blocks */ 68 69 /* vendor specific kcontrol operations */ 70 const struct snd_soc_tplg_kcontrol_ops *io_ops; 71 int io_ops_count; 72 73 /* vendor specific bytes ext handlers, for TLV bytes controls */ 74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 75 int bytes_ext_ops_count; 76 77 /* optional fw loading callbacks to component drivers */ 78 struct snd_soc_tplg_ops *ops; 79 }; 80 81 static int soc_tplg_process_headers(struct soc_tplg *tplg); 82 static void soc_tplg_complete(struct soc_tplg *tplg); 83 static void soc_tplg_denum_remove_texts(struct soc_enum *se); 84 static void soc_tplg_denum_remove_values(struct soc_enum *se); 85 86 /* check we dont overflow the data for this control chunk */ 87 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 88 unsigned int count, size_t bytes, const char *elem_type) 89 { 90 const u8 *end = tplg->pos + elem_size * count; 91 92 if (end > tplg->fw->data + tplg->fw->size) { 93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 94 elem_type); 95 return -EINVAL; 96 } 97 98 /* check there is enough room in chunk for control. 99 extra bytes at the end of control are for vendor data here */ 100 if (elem_size * count > bytes) { 101 dev_err(tplg->dev, 102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 103 elem_type, count, elem_size, bytes); 104 return -EINVAL; 105 } 106 107 return 0; 108 } 109 110 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 111 { 112 const u8 *end = tplg->hdr_pos; 113 114 if (end >= tplg->fw->data + tplg->fw->size) 115 return 1; 116 return 0; 117 } 118 119 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 120 { 121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 122 } 123 124 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 125 { 126 return (unsigned long)(tplg->pos - tplg->fw->data); 127 } 128 129 /* mapping of Kcontrol types and associated operations. */ 130 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 132 snd_soc_put_volsw, snd_soc_info_volsw}, 133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 134 snd_soc_put_volsw_sx, NULL}, 135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 136 snd_soc_put_enum_double, snd_soc_info_enum_double}, 137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 138 snd_soc_put_enum_double, NULL}, 139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 140 snd_soc_bytes_put, snd_soc_bytes_info}, 141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 142 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 144 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 146 snd_soc_put_strobe, NULL}, 147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 148 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 152 snd_soc_dapm_put_enum_double, NULL}, 153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 154 snd_soc_dapm_put_enum_double, NULL}, 155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 157 }; 158 159 struct soc_tplg_map { 160 int uid; 161 int kid; 162 }; 163 164 /* mapping of widget types from UAPI IDs to kernel IDs */ 165 static const struct soc_tplg_map dapm_map[] = { 166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 190 }; 191 192 static int tplc_chan_get_reg(struct soc_tplg *tplg, 193 struct snd_soc_tplg_channel *chan, int map) 194 { 195 int i; 196 197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 198 if (le32_to_cpu(chan[i].id) == map) 199 return le32_to_cpu(chan[i].reg); 200 } 201 202 return -EINVAL; 203 } 204 205 static int tplc_chan_get_shift(struct soc_tplg *tplg, 206 struct snd_soc_tplg_channel *chan, int map) 207 { 208 int i; 209 210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 211 if (le32_to_cpu(chan[i].id) == map) 212 return le32_to_cpu(chan[i].shift); 213 } 214 215 return -EINVAL; 216 } 217 218 static int get_widget_id(int tplg_type) 219 { 220 int i; 221 222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 223 if (tplg_type == dapm_map[i].uid) 224 return dapm_map[i].kid; 225 } 226 227 return -EINVAL; 228 } 229 230 static inline void soc_bind_err(struct soc_tplg *tplg, 231 struct snd_soc_tplg_ctl_hdr *hdr, int index) 232 { 233 dev_err(tplg->dev, 234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 236 soc_tplg_get_offset(tplg)); 237 } 238 239 static inline void soc_control_err(struct soc_tplg *tplg, 240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 241 { 242 dev_err(tplg->dev, 243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 245 soc_tplg_get_offset(tplg)); 246 } 247 248 /* pass vendor data to component driver for processing */ 249 static int soc_tplg_vendor_load_(struct soc_tplg *tplg, 250 struct snd_soc_tplg_hdr *hdr) 251 { 252 int ret = 0; 253 254 if (tplg->ops && tplg->ops->vendor_load) 255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 256 else { 257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 258 hdr->vendor_type); 259 return -EINVAL; 260 } 261 262 if (ret < 0) 263 dev_err(tplg->dev, 264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 265 soc_tplg_get_hdr_offset(tplg), 266 soc_tplg_get_hdr_offset(tplg), 267 hdr->type, hdr->vendor_type); 268 return ret; 269 } 270 271 /* pass vendor data to component driver for processing */ 272 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 273 struct snd_soc_tplg_hdr *hdr) 274 { 275 if (tplg->pass != SOC_TPLG_PASS_VENDOR) 276 return 0; 277 278 return soc_tplg_vendor_load_(tplg, hdr); 279 } 280 281 /* optionally pass new dynamic widget to component driver. This is mainly for 282 * external widgets where we can assign private data/ops */ 283 static int soc_tplg_widget_load(struct soc_tplg *tplg, 284 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 285 { 286 if (tplg->ops && tplg->ops->widget_load) 287 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 288 tplg_w); 289 290 return 0; 291 } 292 293 /* optionally pass new dynamic widget to component driver. This is mainly for 294 * external widgets where we can assign private data/ops */ 295 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 296 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 297 { 298 if (tplg->ops && tplg->ops->widget_ready) 299 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 300 tplg_w); 301 302 return 0; 303 } 304 305 /* pass DAI configurations to component driver for extra initialization */ 306 static int soc_tplg_dai_load(struct soc_tplg *tplg, 307 struct snd_soc_dai_driver *dai_drv, 308 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 309 { 310 if (tplg->ops && tplg->ops->dai_load) 311 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 312 pcm, dai); 313 314 return 0; 315 } 316 317 /* pass link configurations to component driver for extra initialization */ 318 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 319 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 320 { 321 if (tplg->ops && tplg->ops->link_load) 322 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 323 324 return 0; 325 } 326 327 /* tell the component driver that all firmware has been loaded in this request */ 328 static void soc_tplg_complete(struct soc_tplg *tplg) 329 { 330 if (tplg->ops && tplg->ops->complete) 331 tplg->ops->complete(tplg->comp); 332 } 333 334 /* add a dynamic kcontrol */ 335 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 336 const struct snd_kcontrol_new *control_new, const char *prefix, 337 void *data, struct snd_kcontrol **kcontrol) 338 { 339 int err; 340 341 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 342 if (*kcontrol == NULL) { 343 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 344 control_new->name); 345 return -ENOMEM; 346 } 347 348 err = snd_ctl_add(card, *kcontrol); 349 if (err < 0) { 350 dev_err(dev, "ASoC: Failed to add %s: %d\n", 351 control_new->name, err); 352 return err; 353 } 354 355 return 0; 356 } 357 358 /* add a dynamic kcontrol for component driver */ 359 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 360 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 361 { 362 struct snd_soc_component *comp = tplg->comp; 363 364 return soc_tplg_add_dcontrol(comp->card->snd_card, 365 comp->dev, k, comp->name_prefix, comp, kcontrol); 366 } 367 368 /* remove a mixer kcontrol */ 369 static void remove_mixer(struct snd_soc_component *comp, 370 struct snd_soc_dobj *dobj, int pass) 371 { 372 struct snd_card *card = comp->card->snd_card; 373 struct soc_mixer_control *sm = 374 container_of(dobj, struct soc_mixer_control, dobj); 375 const unsigned int *p = NULL; 376 377 if (pass != SOC_TPLG_PASS_MIXER) 378 return; 379 380 if (dobj->ops && dobj->ops->control_unload) 381 dobj->ops->control_unload(comp, dobj); 382 383 if (dobj->control.kcontrol->tlv.p) 384 p = dobj->control.kcontrol->tlv.p; 385 snd_ctl_remove(card, dobj->control.kcontrol); 386 list_del(&dobj->list); 387 kfree(sm); 388 kfree(p); 389 } 390 391 /* remove an enum kcontrol */ 392 static void remove_enum(struct snd_soc_component *comp, 393 struct snd_soc_dobj *dobj, int pass) 394 { 395 struct snd_card *card = comp->card->snd_card; 396 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 397 398 if (pass != SOC_TPLG_PASS_MIXER) 399 return; 400 401 if (dobj->ops && dobj->ops->control_unload) 402 dobj->ops->control_unload(comp, dobj); 403 404 snd_ctl_remove(card, dobj->control.kcontrol); 405 list_del(&dobj->list); 406 407 soc_tplg_denum_remove_values(se); 408 soc_tplg_denum_remove_texts(se); 409 kfree(se); 410 } 411 412 /* remove a byte kcontrol */ 413 static void remove_bytes(struct snd_soc_component *comp, 414 struct snd_soc_dobj *dobj, int pass) 415 { 416 struct snd_card *card = comp->card->snd_card; 417 struct soc_bytes_ext *sb = 418 container_of(dobj, struct soc_bytes_ext, dobj); 419 420 if (pass != SOC_TPLG_PASS_MIXER) 421 return; 422 423 if (dobj->ops && dobj->ops->control_unload) 424 dobj->ops->control_unload(comp, dobj); 425 426 snd_ctl_remove(card, dobj->control.kcontrol); 427 list_del(&dobj->list); 428 kfree(sb); 429 } 430 431 /* remove a route */ 432 static void remove_route(struct snd_soc_component *comp, 433 struct snd_soc_dobj *dobj, int pass) 434 { 435 struct snd_soc_dapm_route *route = 436 container_of(dobj, struct snd_soc_dapm_route, dobj); 437 438 if (pass != SOC_TPLG_PASS_GRAPH) 439 return; 440 441 if (dobj->ops && dobj->ops->dapm_route_unload) 442 dobj->ops->dapm_route_unload(comp, dobj); 443 444 list_del(&dobj->list); 445 kfree(route); 446 } 447 448 /* remove a widget and it's kcontrols - routes must be removed first */ 449 static void remove_widget(struct snd_soc_component *comp, 450 struct snd_soc_dobj *dobj, int pass) 451 { 452 struct snd_card *card = comp->card->snd_card; 453 struct snd_soc_dapm_widget *w = 454 container_of(dobj, struct snd_soc_dapm_widget, dobj); 455 int i; 456 457 if (pass != SOC_TPLG_PASS_WIDGET) 458 return; 459 460 if (dobj->ops && dobj->ops->widget_unload) 461 dobj->ops->widget_unload(comp, dobj); 462 463 if (!w->kcontrols) 464 goto free_news; 465 466 /* 467 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 468 * The enum may either have an array of values or strings. 469 */ 470 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 471 /* enumerated widget mixer */ 472 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 473 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 474 struct soc_enum *se = 475 (struct soc_enum *)kcontrol->private_value; 476 477 snd_ctl_remove(card, kcontrol); 478 479 /* free enum kcontrol's dvalues and dtexts */ 480 soc_tplg_denum_remove_values(se); 481 soc_tplg_denum_remove_texts(se); 482 483 kfree(se); 484 kfree(w->kcontrol_news[i].name); 485 } 486 } else { 487 /* volume mixer or bytes controls */ 488 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 489 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 490 491 if (dobj->widget.kcontrol_type 492 == SND_SOC_TPLG_TYPE_MIXER) 493 kfree(kcontrol->tlv.p); 494 495 /* Private value is used as struct soc_mixer_control 496 * for volume mixers or soc_bytes_ext for bytes 497 * controls. 498 */ 499 kfree((void *)kcontrol->private_value); 500 snd_ctl_remove(card, kcontrol); 501 kfree(w->kcontrol_news[i].name); 502 } 503 } 504 505 free_news: 506 kfree(w->kcontrol_news); 507 508 list_del(&dobj->list); 509 510 /* widget w is freed by soc-dapm.c */ 511 } 512 513 /* remove DAI configurations */ 514 static void remove_dai(struct snd_soc_component *comp, 515 struct snd_soc_dobj *dobj, int pass) 516 { 517 struct snd_soc_dai_driver *dai_drv = 518 container_of(dobj, struct snd_soc_dai_driver, dobj); 519 struct snd_soc_dai *dai; 520 521 if (pass != SOC_TPLG_PASS_PCM_DAI) 522 return; 523 524 if (dobj->ops && dobj->ops->dai_unload) 525 dobj->ops->dai_unload(comp, dobj); 526 527 for_each_component_dais(comp, dai) 528 if (dai->driver == dai_drv) 529 dai->driver = NULL; 530 531 kfree(dai_drv->playback.stream_name); 532 kfree(dai_drv->capture.stream_name); 533 kfree(dai_drv->name); 534 list_del(&dobj->list); 535 kfree(dai_drv); 536 } 537 538 /* remove link configurations */ 539 static void remove_link(struct snd_soc_component *comp, 540 struct snd_soc_dobj *dobj, int pass) 541 { 542 struct snd_soc_dai_link *link = 543 container_of(dobj, struct snd_soc_dai_link, dobj); 544 545 if (pass != SOC_TPLG_PASS_PCM_DAI) 546 return; 547 548 if (dobj->ops && dobj->ops->link_unload) 549 dobj->ops->link_unload(comp, dobj); 550 551 list_del(&dobj->list); 552 snd_soc_remove_pcm_runtime(comp->card, 553 snd_soc_get_pcm_runtime(comp->card, link)); 554 555 kfree(link->name); 556 kfree(link->stream_name); 557 kfree(link->cpus->dai_name); 558 kfree(link); 559 } 560 561 /* unload dai link */ 562 static void remove_backend_link(struct snd_soc_component *comp, 563 struct snd_soc_dobj *dobj, int pass) 564 { 565 if (pass != SOC_TPLG_PASS_LINK) 566 return; 567 568 if (dobj->ops && dobj->ops->link_unload) 569 dobj->ops->link_unload(comp, dobj); 570 571 /* 572 * We don't free the link here as what remove_link() do since BE 573 * links are not allocated by topology. 574 * We however need to reset the dobj type to its initial values 575 */ 576 dobj->type = SND_SOC_DOBJ_NONE; 577 list_del(&dobj->list); 578 } 579 580 /* bind a kcontrol to it's IO handlers */ 581 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 582 struct snd_kcontrol_new *k, 583 const struct soc_tplg *tplg) 584 { 585 const struct snd_soc_tplg_kcontrol_ops *ops; 586 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 587 int num_ops, i; 588 589 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 590 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 591 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 592 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 593 struct soc_bytes_ext *sbe; 594 struct snd_soc_tplg_bytes_control *be; 595 596 sbe = (struct soc_bytes_ext *)k->private_value; 597 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 598 599 /* TLV bytes controls need standard kcontrol info handler, 600 * TLV callback and extended put/get handlers. 601 */ 602 k->info = snd_soc_bytes_info_ext; 603 k->tlv.c = snd_soc_bytes_tlv_callback; 604 605 ext_ops = tplg->bytes_ext_ops; 606 num_ops = tplg->bytes_ext_ops_count; 607 for (i = 0; i < num_ops; i++) { 608 if (!sbe->put && 609 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 610 sbe->put = ext_ops[i].put; 611 if (!sbe->get && 612 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 613 sbe->get = ext_ops[i].get; 614 } 615 616 if (sbe->put && sbe->get) 617 return 0; 618 else 619 return -EINVAL; 620 } 621 622 /* try and map vendor specific kcontrol handlers first */ 623 ops = tplg->io_ops; 624 num_ops = tplg->io_ops_count; 625 for (i = 0; i < num_ops; i++) { 626 627 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 628 k->put = ops[i].put; 629 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 630 k->get = ops[i].get; 631 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 632 k->info = ops[i].info; 633 } 634 635 /* vendor specific handlers found ? */ 636 if (k->put && k->get && k->info) 637 return 0; 638 639 /* none found so try standard kcontrol handlers */ 640 ops = io_ops; 641 num_ops = ARRAY_SIZE(io_ops); 642 for (i = 0; i < num_ops; i++) { 643 644 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 645 k->put = ops[i].put; 646 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 647 k->get = ops[i].get; 648 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 649 k->info = ops[i].info; 650 } 651 652 /* standard handlers found ? */ 653 if (k->put && k->get && k->info) 654 return 0; 655 656 /* nothing to bind */ 657 return -EINVAL; 658 } 659 660 /* bind a widgets to it's evnt handlers */ 661 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 662 const struct snd_soc_tplg_widget_events *events, 663 int num_events, u16 event_type) 664 { 665 int i; 666 667 w->event = NULL; 668 669 for (i = 0; i < num_events; i++) { 670 if (event_type == events[i].type) { 671 672 /* found - so assign event */ 673 w->event = events[i].event_handler; 674 return 0; 675 } 676 } 677 678 /* not found */ 679 return -EINVAL; 680 } 681 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 682 683 /* optionally pass new dynamic kcontrol to component driver. */ 684 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 685 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 686 { 687 if (tplg->ops && tplg->ops->control_load) 688 return tplg->ops->control_load(tplg->comp, tplg->index, k, 689 hdr); 690 691 return 0; 692 } 693 694 695 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 696 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 697 { 698 unsigned int item_len = 2 * sizeof(unsigned int); 699 unsigned int *p; 700 701 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 702 if (!p) 703 return -ENOMEM; 704 705 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 706 p[1] = item_len; 707 p[2] = le32_to_cpu(scale->min); 708 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 709 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 710 711 kc->tlv.p = (void *)p; 712 return 0; 713 } 714 715 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 716 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 717 { 718 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 719 u32 access = le32_to_cpu(tc->access); 720 721 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 722 return 0; 723 724 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 725 tplg_tlv = &tc->tlv; 726 switch (le32_to_cpu(tplg_tlv->type)) { 727 case SNDRV_CTL_TLVT_DB_SCALE: 728 return soc_tplg_create_tlv_db_scale(tplg, kc, 729 &tplg_tlv->scale); 730 731 /* TODO: add support for other TLV types */ 732 default: 733 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 734 tplg_tlv->type); 735 return -EINVAL; 736 } 737 } 738 739 return 0; 740 } 741 742 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 743 struct snd_kcontrol_new *kc) 744 { 745 kfree(kc->tlv.p); 746 } 747 748 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 749 size_t size) 750 { 751 struct snd_soc_tplg_bytes_control *be; 752 struct soc_bytes_ext *sbe; 753 struct snd_kcontrol_new kc; 754 int i, err; 755 756 if (soc_tplg_check_elem_count(tplg, 757 sizeof(struct snd_soc_tplg_bytes_control), count, 758 size, "mixer bytes")) { 759 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 760 count); 761 return -EINVAL; 762 } 763 764 for (i = 0; i < count; i++) { 765 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 766 767 /* validate kcontrol */ 768 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 769 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 770 return -EINVAL; 771 772 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 773 if (sbe == NULL) 774 return -ENOMEM; 775 776 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 777 le32_to_cpu(be->priv.size)); 778 779 dev_dbg(tplg->dev, 780 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 781 be->hdr.name, be->hdr.access); 782 783 memset(&kc, 0, sizeof(kc)); 784 kc.name = be->hdr.name; 785 kc.private_value = (long)sbe; 786 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 787 kc.access = le32_to_cpu(be->hdr.access); 788 789 sbe->max = le32_to_cpu(be->max); 790 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 791 sbe->dobj.ops = tplg->ops; 792 INIT_LIST_HEAD(&sbe->dobj.list); 793 794 /* map io handlers */ 795 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 796 if (err) { 797 soc_control_err(tplg, &be->hdr, be->hdr.name); 798 kfree(sbe); 799 continue; 800 } 801 802 /* pass control to driver for optional further init */ 803 err = soc_tplg_init_kcontrol(tplg, &kc, 804 (struct snd_soc_tplg_ctl_hdr *)be); 805 if (err < 0) { 806 dev_err(tplg->dev, "ASoC: failed to init %s\n", 807 be->hdr.name); 808 kfree(sbe); 809 continue; 810 } 811 812 /* register control here */ 813 err = soc_tplg_add_kcontrol(tplg, &kc, 814 &sbe->dobj.control.kcontrol); 815 if (err < 0) { 816 dev_err(tplg->dev, "ASoC: failed to add %s\n", 817 be->hdr.name); 818 kfree(sbe); 819 continue; 820 } 821 822 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 823 } 824 return 0; 825 826 } 827 828 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 829 size_t size) 830 { 831 struct snd_soc_tplg_mixer_control *mc; 832 struct soc_mixer_control *sm; 833 struct snd_kcontrol_new kc; 834 int i, err; 835 836 if (soc_tplg_check_elem_count(tplg, 837 sizeof(struct snd_soc_tplg_mixer_control), 838 count, size, "mixers")) { 839 840 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 841 count); 842 return -EINVAL; 843 } 844 845 for (i = 0; i < count; i++) { 846 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 847 848 /* validate kcontrol */ 849 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 850 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 851 return -EINVAL; 852 853 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 854 if (sm == NULL) 855 return -ENOMEM; 856 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 857 le32_to_cpu(mc->priv.size)); 858 859 dev_dbg(tplg->dev, 860 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 861 mc->hdr.name, mc->hdr.access); 862 863 memset(&kc, 0, sizeof(kc)); 864 kc.name = mc->hdr.name; 865 kc.private_value = (long)sm; 866 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 867 kc.access = le32_to_cpu(mc->hdr.access); 868 869 /* we only support FL/FR channel mapping atm */ 870 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 871 SNDRV_CHMAP_FL); 872 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 873 SNDRV_CHMAP_FR); 874 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 875 SNDRV_CHMAP_FL); 876 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 877 SNDRV_CHMAP_FR); 878 879 sm->max = le32_to_cpu(mc->max); 880 sm->min = le32_to_cpu(mc->min); 881 sm->invert = le32_to_cpu(mc->invert); 882 sm->platform_max = le32_to_cpu(mc->platform_max); 883 sm->dobj.index = tplg->index; 884 sm->dobj.ops = tplg->ops; 885 sm->dobj.type = SND_SOC_DOBJ_MIXER; 886 INIT_LIST_HEAD(&sm->dobj.list); 887 888 /* map io handlers */ 889 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 890 if (err) { 891 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 892 kfree(sm); 893 continue; 894 } 895 896 /* create any TLV data */ 897 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 898 if (err < 0) { 899 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 900 mc->hdr.name); 901 kfree(sm); 902 continue; 903 } 904 905 /* pass control to driver for optional further init */ 906 err = soc_tplg_init_kcontrol(tplg, &kc, 907 (struct snd_soc_tplg_ctl_hdr *) mc); 908 if (err < 0) { 909 dev_err(tplg->dev, "ASoC: failed to init %s\n", 910 mc->hdr.name); 911 soc_tplg_free_tlv(tplg, &kc); 912 kfree(sm); 913 continue; 914 } 915 916 /* register control here */ 917 err = soc_tplg_add_kcontrol(tplg, &kc, 918 &sm->dobj.control.kcontrol); 919 if (err < 0) { 920 dev_err(tplg->dev, "ASoC: failed to add %s\n", 921 mc->hdr.name); 922 soc_tplg_free_tlv(tplg, &kc); 923 kfree(sm); 924 continue; 925 } 926 927 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 928 } 929 930 return 0; 931 } 932 933 static int soc_tplg_denum_create_texts(struct soc_enum *se, 934 struct snd_soc_tplg_enum_control *ec) 935 { 936 int i, ret; 937 938 se->dobj.control.dtexts = 939 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 940 if (se->dobj.control.dtexts == NULL) 941 return -ENOMEM; 942 943 for (i = 0; i < le32_to_cpu(ec->items); i++) { 944 945 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 946 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 947 ret = -EINVAL; 948 goto err; 949 } 950 951 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 952 if (!se->dobj.control.dtexts[i]) { 953 ret = -ENOMEM; 954 goto err; 955 } 956 } 957 958 se->items = le32_to_cpu(ec->items); 959 se->texts = (const char * const *)se->dobj.control.dtexts; 960 return 0; 961 962 err: 963 se->items = i; 964 soc_tplg_denum_remove_texts(se); 965 return ret; 966 } 967 968 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se) 969 { 970 int i = se->items; 971 972 for (--i; i >= 0; i--) 973 kfree(se->dobj.control.dtexts[i]); 974 kfree(se->dobj.control.dtexts); 975 } 976 977 static int soc_tplg_denum_create_values(struct soc_enum *se, 978 struct snd_soc_tplg_enum_control *ec) 979 { 980 int i; 981 982 if (le32_to_cpu(ec->items) > sizeof(*ec->values)) 983 return -EINVAL; 984 985 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) * 986 sizeof(u32), 987 GFP_KERNEL); 988 if (!se->dobj.control.dvalues) 989 return -ENOMEM; 990 991 /* convert from little-endian */ 992 for (i = 0; i < le32_to_cpu(ec->items); i++) { 993 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 994 } 995 996 return 0; 997 } 998 999 static inline void soc_tplg_denum_remove_values(struct soc_enum *se) 1000 { 1001 kfree(se->dobj.control.dvalues); 1002 } 1003 1004 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 1005 size_t size) 1006 { 1007 struct snd_soc_tplg_enum_control *ec; 1008 struct soc_enum *se; 1009 struct snd_kcontrol_new kc; 1010 int i, ret, err; 1011 1012 if (soc_tplg_check_elem_count(tplg, 1013 sizeof(struct snd_soc_tplg_enum_control), 1014 count, size, "enums")) { 1015 1016 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 1017 count); 1018 return -EINVAL; 1019 } 1020 1021 for (i = 0; i < count; i++) { 1022 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1023 1024 /* validate kcontrol */ 1025 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1026 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1027 return -EINVAL; 1028 1029 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1030 if (se == NULL) 1031 return -ENOMEM; 1032 1033 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1034 le32_to_cpu(ec->priv.size)); 1035 1036 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1037 ec->hdr.name, ec->items); 1038 1039 memset(&kc, 0, sizeof(kc)); 1040 kc.name = ec->hdr.name; 1041 kc.private_value = (long)se; 1042 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1043 kc.access = le32_to_cpu(ec->hdr.access); 1044 1045 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1046 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1047 SNDRV_CHMAP_FL); 1048 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1049 SNDRV_CHMAP_FL); 1050 1051 se->mask = le32_to_cpu(ec->mask); 1052 se->dobj.index = tplg->index; 1053 se->dobj.type = SND_SOC_DOBJ_ENUM; 1054 se->dobj.ops = tplg->ops; 1055 INIT_LIST_HEAD(&se->dobj.list); 1056 1057 switch (le32_to_cpu(ec->hdr.ops.info)) { 1058 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1059 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1060 err = soc_tplg_denum_create_values(se, ec); 1061 if (err < 0) { 1062 dev_err(tplg->dev, 1063 "ASoC: could not create values for %s\n", 1064 ec->hdr.name); 1065 kfree(se); 1066 continue; 1067 } 1068 /* fall through */ 1069 case SND_SOC_TPLG_CTL_ENUM: 1070 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1071 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1072 err = soc_tplg_denum_create_texts(se, ec); 1073 if (err < 0) { 1074 dev_err(tplg->dev, 1075 "ASoC: could not create texts for %s\n", 1076 ec->hdr.name); 1077 kfree(se); 1078 continue; 1079 } 1080 break; 1081 default: 1082 dev_err(tplg->dev, 1083 "ASoC: invalid enum control type %d for %s\n", 1084 ec->hdr.ops.info, ec->hdr.name); 1085 kfree(se); 1086 continue; 1087 } 1088 1089 /* map io handlers */ 1090 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1091 if (err) { 1092 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1093 kfree(se); 1094 continue; 1095 } 1096 1097 /* pass control to driver for optional further init */ 1098 err = soc_tplg_init_kcontrol(tplg, &kc, 1099 (struct snd_soc_tplg_ctl_hdr *) ec); 1100 if (err < 0) { 1101 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1102 ec->hdr.name); 1103 kfree(se); 1104 continue; 1105 } 1106 1107 /* register control here */ 1108 ret = soc_tplg_add_kcontrol(tplg, 1109 &kc, &se->dobj.control.kcontrol); 1110 if (ret < 0) { 1111 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1112 ec->hdr.name); 1113 kfree(se); 1114 continue; 1115 } 1116 1117 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1118 } 1119 1120 return 0; 1121 } 1122 1123 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1124 struct snd_soc_tplg_hdr *hdr) 1125 { 1126 struct snd_soc_tplg_ctl_hdr *control_hdr; 1127 int ret; 1128 int i; 1129 1130 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 1131 tplg->pos += le32_to_cpu(hdr->size) + 1132 le32_to_cpu(hdr->payload_size); 1133 return 0; 1134 } 1135 1136 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1137 soc_tplg_get_offset(tplg)); 1138 1139 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 1140 1141 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1142 1143 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 1144 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1145 return -EINVAL; 1146 } 1147 1148 switch (le32_to_cpu(control_hdr->ops.info)) { 1149 case SND_SOC_TPLG_CTL_VOLSW: 1150 case SND_SOC_TPLG_CTL_STROBE: 1151 case SND_SOC_TPLG_CTL_VOLSW_SX: 1152 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1153 case SND_SOC_TPLG_CTL_RANGE: 1154 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1155 case SND_SOC_TPLG_DAPM_CTL_PIN: 1156 ret = soc_tplg_dmixer_create(tplg, 1, 1157 le32_to_cpu(hdr->payload_size)); 1158 break; 1159 case SND_SOC_TPLG_CTL_ENUM: 1160 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1161 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1162 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1163 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1164 ret = soc_tplg_denum_create(tplg, 1, 1165 le32_to_cpu(hdr->payload_size)); 1166 break; 1167 case SND_SOC_TPLG_CTL_BYTES: 1168 ret = soc_tplg_dbytes_create(tplg, 1, 1169 le32_to_cpu(hdr->payload_size)); 1170 break; 1171 default: 1172 soc_bind_err(tplg, control_hdr, i); 1173 return -EINVAL; 1174 } 1175 if (ret < 0) { 1176 dev_err(tplg->dev, "ASoC: invalid control\n"); 1177 return ret; 1178 } 1179 1180 } 1181 1182 return 0; 1183 } 1184 1185 /* optionally pass new dynamic kcontrol to component driver. */ 1186 static int soc_tplg_add_route(struct soc_tplg *tplg, 1187 struct snd_soc_dapm_route *route) 1188 { 1189 if (tplg->ops && tplg->ops->dapm_route_load) 1190 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1191 route); 1192 1193 return 0; 1194 } 1195 1196 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1197 struct snd_soc_tplg_hdr *hdr) 1198 { 1199 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1200 struct snd_soc_tplg_dapm_graph_elem *elem; 1201 struct snd_soc_dapm_route **routes; 1202 int count, i, j; 1203 int ret = 0; 1204 1205 count = le32_to_cpu(hdr->count); 1206 1207 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1208 tplg->pos += 1209 le32_to_cpu(hdr->size) + 1210 le32_to_cpu(hdr->payload_size); 1211 1212 return 0; 1213 } 1214 1215 if (soc_tplg_check_elem_count(tplg, 1216 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1217 count, le32_to_cpu(hdr->payload_size), "graph")) { 1218 1219 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1220 count); 1221 return -EINVAL; 1222 } 1223 1224 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1225 hdr->index); 1226 1227 /* allocate memory for pointer to array of dapm routes */ 1228 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1229 GFP_KERNEL); 1230 if (!routes) 1231 return -ENOMEM; 1232 1233 /* 1234 * allocate memory for each dapm route in the array. 1235 * This needs to be done individually so that 1236 * each route can be freed when it is removed in remove_route(). 1237 */ 1238 for (i = 0; i < count; i++) { 1239 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL); 1240 if (!routes[i]) { 1241 /* free previously allocated memory */ 1242 for (j = 0; j < i; j++) 1243 kfree(routes[j]); 1244 1245 kfree(routes); 1246 return -ENOMEM; 1247 } 1248 } 1249 1250 for (i = 0; i < count; i++) { 1251 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1252 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1253 1254 /* validate routes */ 1255 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1256 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1257 ret = -EINVAL; 1258 break; 1259 } 1260 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1261 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1262 ret = -EINVAL; 1263 break; 1264 } 1265 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1266 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1267 ret = -EINVAL; 1268 break; 1269 } 1270 1271 routes[i]->source = elem->source; 1272 routes[i]->sink = elem->sink; 1273 1274 /* set to NULL atm for tplg users */ 1275 routes[i]->connected = NULL; 1276 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1277 routes[i]->control = NULL; 1278 else 1279 routes[i]->control = elem->control; 1280 1281 /* add route dobj to dobj_list */ 1282 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1283 routes[i]->dobj.ops = tplg->ops; 1284 routes[i]->dobj.index = tplg->index; 1285 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1286 1287 ret = soc_tplg_add_route(tplg, routes[i]); 1288 if (ret < 0) 1289 break; 1290 1291 /* add route, but keep going if some fail */ 1292 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1293 } 1294 1295 /* free memory allocated for all dapm routes in case of error */ 1296 if (ret < 0) 1297 for (i = 0; i < count ; i++) 1298 kfree(routes[i]); 1299 1300 /* 1301 * free pointer to array of dapm routes as this is no longer needed. 1302 * The memory allocated for each dapm route will be freed 1303 * when it is removed in remove_route(). 1304 */ 1305 kfree(routes); 1306 1307 return ret; 1308 } 1309 1310 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1311 struct soc_tplg *tplg, int num_kcontrols) 1312 { 1313 struct snd_kcontrol_new *kc; 1314 struct soc_mixer_control *sm; 1315 struct snd_soc_tplg_mixer_control *mc; 1316 int i, err; 1317 1318 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1319 if (kc == NULL) 1320 return NULL; 1321 1322 for (i = 0; i < num_kcontrols; i++) { 1323 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1324 1325 /* validate kcontrol */ 1326 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1327 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1328 goto err_sm; 1329 1330 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1331 if (sm == NULL) 1332 goto err_sm; 1333 1334 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1335 le32_to_cpu(mc->priv.size)); 1336 1337 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1338 mc->hdr.name, i); 1339 1340 kc[i].private_value = (long)sm; 1341 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1342 if (kc[i].name == NULL) 1343 goto err_sm; 1344 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1345 kc[i].access = le32_to_cpu(mc->hdr.access); 1346 1347 /* we only support FL/FR channel mapping atm */ 1348 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1349 SNDRV_CHMAP_FL); 1350 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1351 SNDRV_CHMAP_FR); 1352 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1353 SNDRV_CHMAP_FL); 1354 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1355 SNDRV_CHMAP_FR); 1356 1357 sm->max = le32_to_cpu(mc->max); 1358 sm->min = le32_to_cpu(mc->min); 1359 sm->invert = le32_to_cpu(mc->invert); 1360 sm->platform_max = le32_to_cpu(mc->platform_max); 1361 sm->dobj.index = tplg->index; 1362 INIT_LIST_HEAD(&sm->dobj.list); 1363 1364 /* map io handlers */ 1365 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1366 if (err) { 1367 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1368 goto err_sm; 1369 } 1370 1371 /* create any TLV data */ 1372 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1373 if (err < 0) { 1374 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1375 mc->hdr.name); 1376 kfree(sm); 1377 continue; 1378 } 1379 1380 /* pass control to driver for optional further init */ 1381 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1382 (struct snd_soc_tplg_ctl_hdr *)mc); 1383 if (err < 0) { 1384 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1385 mc->hdr.name); 1386 soc_tplg_free_tlv(tplg, &kc[i]); 1387 goto err_sm; 1388 } 1389 } 1390 return kc; 1391 1392 err_sm: 1393 for (; i >= 0; i--) { 1394 sm = (struct soc_mixer_control *)kc[i].private_value; 1395 kfree(sm); 1396 kfree(kc[i].name); 1397 } 1398 kfree(kc); 1399 1400 return NULL; 1401 } 1402 1403 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1404 struct soc_tplg *tplg, int num_kcontrols) 1405 { 1406 struct snd_kcontrol_new *kc; 1407 struct snd_soc_tplg_enum_control *ec; 1408 struct soc_enum *se; 1409 int i, err; 1410 1411 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1412 if (kc == NULL) 1413 return NULL; 1414 1415 for (i = 0; i < num_kcontrols; i++) { 1416 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1417 /* validate kcontrol */ 1418 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1419 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1420 goto err_se; 1421 1422 se = kzalloc(sizeof(*se), GFP_KERNEL); 1423 if (se == NULL) 1424 goto err_se; 1425 1426 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1427 le32_to_cpu(ec->priv.size)); 1428 1429 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1430 ec->hdr.name); 1431 1432 kc[i].private_value = (long)se; 1433 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1434 if (kc[i].name == NULL) 1435 goto err_se; 1436 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1437 kc[i].access = le32_to_cpu(ec->hdr.access); 1438 1439 /* we only support FL/FR channel mapping atm */ 1440 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1441 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1442 SNDRV_CHMAP_FL); 1443 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1444 SNDRV_CHMAP_FR); 1445 1446 se->items = le32_to_cpu(ec->items); 1447 se->mask = le32_to_cpu(ec->mask); 1448 se->dobj.index = tplg->index; 1449 1450 switch (le32_to_cpu(ec->hdr.ops.info)) { 1451 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1452 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1453 err = soc_tplg_denum_create_values(se, ec); 1454 if (err < 0) { 1455 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1456 ec->hdr.name); 1457 goto err_se; 1458 } 1459 /* fall through */ 1460 case SND_SOC_TPLG_CTL_ENUM: 1461 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1462 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1463 err = soc_tplg_denum_create_texts(se, ec); 1464 if (err < 0) { 1465 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1466 ec->hdr.name); 1467 goto err_se; 1468 } 1469 break; 1470 default: 1471 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1472 ec->hdr.ops.info, ec->hdr.name); 1473 goto err_se; 1474 } 1475 1476 /* map io handlers */ 1477 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1478 if (err) { 1479 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1480 goto err_se; 1481 } 1482 1483 /* pass control to driver for optional further init */ 1484 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1485 (struct snd_soc_tplg_ctl_hdr *)ec); 1486 if (err < 0) { 1487 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1488 ec->hdr.name); 1489 goto err_se; 1490 } 1491 } 1492 1493 return kc; 1494 1495 err_se: 1496 for (; i >= 0; i--) { 1497 /* free values and texts */ 1498 se = (struct soc_enum *)kc[i].private_value; 1499 1500 if (se) { 1501 soc_tplg_denum_remove_values(se); 1502 soc_tplg_denum_remove_texts(se); 1503 } 1504 1505 kfree(se); 1506 kfree(kc[i].name); 1507 } 1508 kfree(kc); 1509 1510 return NULL; 1511 } 1512 1513 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1514 struct soc_tplg *tplg, int num_kcontrols) 1515 { 1516 struct snd_soc_tplg_bytes_control *be; 1517 struct soc_bytes_ext *sbe; 1518 struct snd_kcontrol_new *kc; 1519 int i, err; 1520 1521 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1522 if (!kc) 1523 return NULL; 1524 1525 for (i = 0; i < num_kcontrols; i++) { 1526 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1527 1528 /* validate kcontrol */ 1529 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1530 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1531 goto err_sbe; 1532 1533 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1534 if (sbe == NULL) 1535 goto err_sbe; 1536 1537 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1538 le32_to_cpu(be->priv.size)); 1539 1540 dev_dbg(tplg->dev, 1541 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1542 be->hdr.name, be->hdr.access); 1543 1544 kc[i].private_value = (long)sbe; 1545 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1546 if (kc[i].name == NULL) 1547 goto err_sbe; 1548 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1549 kc[i].access = le32_to_cpu(be->hdr.access); 1550 1551 sbe->max = le32_to_cpu(be->max); 1552 INIT_LIST_HEAD(&sbe->dobj.list); 1553 1554 /* map standard io handlers and check for external handlers */ 1555 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1556 if (err) { 1557 soc_control_err(tplg, &be->hdr, be->hdr.name); 1558 goto err_sbe; 1559 } 1560 1561 /* pass control to driver for optional further init */ 1562 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1563 (struct snd_soc_tplg_ctl_hdr *)be); 1564 if (err < 0) { 1565 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1566 be->hdr.name); 1567 goto err_sbe; 1568 } 1569 } 1570 1571 return kc; 1572 1573 err_sbe: 1574 for (; i >= 0; i--) { 1575 sbe = (struct soc_bytes_ext *)kc[i].private_value; 1576 kfree(sbe); 1577 kfree(kc[i].name); 1578 } 1579 kfree(kc); 1580 1581 return NULL; 1582 } 1583 1584 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1585 struct snd_soc_tplg_dapm_widget *w) 1586 { 1587 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1588 struct snd_soc_dapm_widget template, *widget; 1589 struct snd_soc_tplg_ctl_hdr *control_hdr; 1590 struct snd_soc_card *card = tplg->comp->card; 1591 unsigned int kcontrol_type; 1592 int ret = 0; 1593 1594 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1595 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1596 return -EINVAL; 1597 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1598 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1599 return -EINVAL; 1600 1601 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1602 w->name, w->id); 1603 1604 memset(&template, 0, sizeof(template)); 1605 1606 /* map user to kernel widget ID */ 1607 template.id = get_widget_id(le32_to_cpu(w->id)); 1608 if ((int)template.id < 0) 1609 return template.id; 1610 1611 /* strings are allocated here, but used and freed by the widget */ 1612 template.name = kstrdup(w->name, GFP_KERNEL); 1613 if (!template.name) 1614 return -ENOMEM; 1615 template.sname = kstrdup(w->sname, GFP_KERNEL); 1616 if (!template.sname) { 1617 ret = -ENOMEM; 1618 goto err; 1619 } 1620 template.reg = le32_to_cpu(w->reg); 1621 template.shift = le32_to_cpu(w->shift); 1622 template.mask = le32_to_cpu(w->mask); 1623 template.subseq = le32_to_cpu(w->subseq); 1624 template.on_val = w->invert ? 0 : 1; 1625 template.off_val = w->invert ? 1 : 0; 1626 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1627 template.event_flags = le16_to_cpu(w->event_flags); 1628 template.dobj.index = tplg->index; 1629 1630 tplg->pos += 1631 (sizeof(struct snd_soc_tplg_dapm_widget) + 1632 le32_to_cpu(w->priv.size)); 1633 1634 if (w->num_kcontrols == 0) { 1635 kcontrol_type = 0; 1636 template.num_kcontrols = 0; 1637 goto widget; 1638 } 1639 1640 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1641 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1642 w->name, w->num_kcontrols, control_hdr->type); 1643 1644 switch (le32_to_cpu(control_hdr->ops.info)) { 1645 case SND_SOC_TPLG_CTL_VOLSW: 1646 case SND_SOC_TPLG_CTL_STROBE: 1647 case SND_SOC_TPLG_CTL_VOLSW_SX: 1648 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1649 case SND_SOC_TPLG_CTL_RANGE: 1650 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1651 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1652 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1653 template.kcontrol_news = 1654 soc_tplg_dapm_widget_dmixer_create(tplg, 1655 template.num_kcontrols); 1656 if (!template.kcontrol_news) { 1657 ret = -ENOMEM; 1658 goto hdr_err; 1659 } 1660 break; 1661 case SND_SOC_TPLG_CTL_ENUM: 1662 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1663 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1664 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1665 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1666 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1667 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1668 template.kcontrol_news = 1669 soc_tplg_dapm_widget_denum_create(tplg, 1670 template.num_kcontrols); 1671 if (!template.kcontrol_news) { 1672 ret = -ENOMEM; 1673 goto hdr_err; 1674 } 1675 break; 1676 case SND_SOC_TPLG_CTL_BYTES: 1677 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1678 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1679 template.kcontrol_news = 1680 soc_tplg_dapm_widget_dbytes_create(tplg, 1681 template.num_kcontrols); 1682 if (!template.kcontrol_news) { 1683 ret = -ENOMEM; 1684 goto hdr_err; 1685 } 1686 break; 1687 default: 1688 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1689 control_hdr->ops.get, control_hdr->ops.put, 1690 le32_to_cpu(control_hdr->ops.info)); 1691 ret = -EINVAL; 1692 goto hdr_err; 1693 } 1694 1695 widget: 1696 ret = soc_tplg_widget_load(tplg, &template, w); 1697 if (ret < 0) 1698 goto hdr_err; 1699 1700 /* card dapm mutex is held by the core if we are loading topology 1701 * data during sound card init. */ 1702 if (card->instantiated) 1703 widget = snd_soc_dapm_new_control(dapm, &template); 1704 else 1705 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1706 if (IS_ERR(widget)) { 1707 ret = PTR_ERR(widget); 1708 goto hdr_err; 1709 } 1710 1711 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1712 widget->dobj.widget.kcontrol_type = kcontrol_type; 1713 widget->dobj.ops = tplg->ops; 1714 widget->dobj.index = tplg->index; 1715 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1716 1717 ret = soc_tplg_widget_ready(tplg, widget, w); 1718 if (ret < 0) 1719 goto ready_err; 1720 1721 kfree(template.sname); 1722 kfree(template.name); 1723 1724 return 0; 1725 1726 ready_err: 1727 snd_soc_tplg_widget_remove(widget); 1728 snd_soc_dapm_free_widget(widget); 1729 hdr_err: 1730 kfree(template.sname); 1731 err: 1732 kfree(template.name); 1733 return ret; 1734 } 1735 1736 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1737 struct snd_soc_tplg_hdr *hdr) 1738 { 1739 struct snd_soc_tplg_dapm_widget *widget; 1740 int ret, count, i; 1741 1742 count = le32_to_cpu(hdr->count); 1743 1744 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1745 return 0; 1746 1747 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1748 1749 for (i = 0; i < count; i++) { 1750 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1751 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1752 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1753 return -EINVAL; 1754 } 1755 1756 ret = soc_tplg_dapm_widget_create(tplg, widget); 1757 if (ret < 0) { 1758 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1759 widget->name); 1760 return ret; 1761 } 1762 } 1763 1764 return 0; 1765 } 1766 1767 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1768 { 1769 struct snd_soc_card *card = tplg->comp->card; 1770 int ret; 1771 1772 /* Card might not have been registered at this point. 1773 * If so, just return success. 1774 */ 1775 if (!card || !card->instantiated) { 1776 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1777 " widget card binding deferred\n"); 1778 return 0; 1779 } 1780 1781 ret = snd_soc_dapm_new_widgets(card); 1782 if (ret < 0) 1783 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1784 ret); 1785 1786 return 0; 1787 } 1788 1789 static int set_stream_info(struct snd_soc_pcm_stream *stream, 1790 struct snd_soc_tplg_stream_caps *caps) 1791 { 1792 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1793 if (!stream->stream_name) 1794 return -ENOMEM; 1795 1796 stream->channels_min = le32_to_cpu(caps->channels_min); 1797 stream->channels_max = le32_to_cpu(caps->channels_max); 1798 stream->rates = le32_to_cpu(caps->rates); 1799 stream->rate_min = le32_to_cpu(caps->rate_min); 1800 stream->rate_max = le32_to_cpu(caps->rate_max); 1801 stream->formats = le64_to_cpu(caps->formats); 1802 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1803 1804 return 0; 1805 } 1806 1807 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1808 unsigned int flag_mask, unsigned int flags) 1809 { 1810 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1811 dai_drv->symmetric_rates = 1812 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1813 1814 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1815 dai_drv->symmetric_channels = 1816 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1817 1 : 0; 1818 1819 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1820 dai_drv->symmetric_samplebits = 1821 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1822 1 : 0; 1823 } 1824 1825 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1826 struct snd_soc_tplg_pcm *pcm) 1827 { 1828 struct snd_soc_dai_driver *dai_drv; 1829 struct snd_soc_pcm_stream *stream; 1830 struct snd_soc_tplg_stream_caps *caps; 1831 struct snd_soc_dai *dai; 1832 struct snd_soc_dapm_context *dapm = 1833 snd_soc_component_get_dapm(tplg->comp); 1834 int ret; 1835 1836 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1837 if (dai_drv == NULL) 1838 return -ENOMEM; 1839 1840 if (strlen(pcm->dai_name)) { 1841 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1842 if (!dai_drv->name) { 1843 ret = -ENOMEM; 1844 goto err; 1845 } 1846 } 1847 dai_drv->id = le32_to_cpu(pcm->dai_id); 1848 1849 if (pcm->playback) { 1850 stream = &dai_drv->playback; 1851 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1852 ret = set_stream_info(stream, caps); 1853 if (ret < 0) 1854 goto err; 1855 } 1856 1857 if (pcm->capture) { 1858 stream = &dai_drv->capture; 1859 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1860 ret = set_stream_info(stream, caps); 1861 if (ret < 0) 1862 goto err; 1863 } 1864 1865 if (pcm->compress) 1866 dai_drv->compress_new = snd_soc_new_compress; 1867 1868 /* pass control to component driver for optional further init */ 1869 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1870 if (ret < 0) { 1871 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1872 goto err; 1873 } 1874 1875 dai_drv->dobj.index = tplg->index; 1876 dai_drv->dobj.ops = tplg->ops; 1877 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1878 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1879 1880 /* register the DAI to the component */ 1881 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1882 if (!dai) 1883 return -ENOMEM; 1884 1885 /* Create the DAI widgets here */ 1886 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1887 if (ret != 0) { 1888 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1889 snd_soc_unregister_dai(dai); 1890 return ret; 1891 } 1892 1893 return 0; 1894 1895 err: 1896 kfree(dai_drv->playback.stream_name); 1897 kfree(dai_drv->capture.stream_name); 1898 kfree(dai_drv->name); 1899 kfree(dai_drv); 1900 1901 return ret; 1902 } 1903 1904 static void set_link_flags(struct snd_soc_dai_link *link, 1905 unsigned int flag_mask, unsigned int flags) 1906 { 1907 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1908 link->symmetric_rates = 1909 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1910 1911 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1912 link->symmetric_channels = 1913 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1914 1 : 0; 1915 1916 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1917 link->symmetric_samplebits = 1918 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1919 1 : 0; 1920 1921 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1922 link->ignore_suspend = 1923 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1924 1 : 0; 1925 } 1926 1927 /* create the FE DAI link */ 1928 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1929 struct snd_soc_tplg_pcm *pcm) 1930 { 1931 struct snd_soc_dai_link *link; 1932 struct snd_soc_dai_link_component *dlc; 1933 int ret; 1934 1935 /* link + cpu + codec + platform */ 1936 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1937 if (link == NULL) 1938 return -ENOMEM; 1939 1940 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1941 1942 link->cpus = &dlc[0]; 1943 link->codecs = &dlc[1]; 1944 link->platforms = &dlc[2]; 1945 1946 link->num_cpus = 1; 1947 link->num_codecs = 1; 1948 link->num_platforms = 1; 1949 1950 link->dobj.index = tplg->index; 1951 link->dobj.ops = tplg->ops; 1952 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1953 1954 if (strlen(pcm->pcm_name)) { 1955 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1956 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1957 if (!link->name || !link->stream_name) { 1958 ret = -ENOMEM; 1959 goto err; 1960 } 1961 } 1962 link->id = le32_to_cpu(pcm->pcm_id); 1963 1964 if (strlen(pcm->dai_name)) { 1965 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1966 if (!link->cpus->dai_name) { 1967 ret = -ENOMEM; 1968 goto err; 1969 } 1970 } 1971 1972 link->codecs->name = "snd-soc-dummy"; 1973 link->codecs->dai_name = "snd-soc-dummy-dai"; 1974 1975 link->platforms->name = "snd-soc-dummy"; 1976 1977 /* enable DPCM */ 1978 link->dynamic = 1; 1979 link->dpcm_playback = le32_to_cpu(pcm->playback); 1980 link->dpcm_capture = le32_to_cpu(pcm->capture); 1981 if (pcm->flag_mask) 1982 set_link_flags(link, 1983 le32_to_cpu(pcm->flag_mask), 1984 le32_to_cpu(pcm->flags)); 1985 1986 /* pass control to component driver for optional further init */ 1987 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1988 if (ret < 0) { 1989 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1990 goto err; 1991 } 1992 1993 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1994 if (ret < 0) { 1995 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n"); 1996 goto err; 1997 } 1998 1999 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2000 2001 return 0; 2002 err: 2003 kfree(link->name); 2004 kfree(link->stream_name); 2005 kfree(link->cpus->dai_name); 2006 kfree(link); 2007 return ret; 2008 } 2009 2010 /* create a FE DAI and DAI link from the PCM object */ 2011 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 2012 struct snd_soc_tplg_pcm *pcm) 2013 { 2014 int ret; 2015 2016 ret = soc_tplg_dai_create(tplg, pcm); 2017 if (ret < 0) 2018 return ret; 2019 2020 return soc_tplg_fe_link_create(tplg, pcm); 2021 } 2022 2023 /* copy stream caps from the old version 4 of source */ 2024 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 2025 struct snd_soc_tplg_stream_caps_v4 *src) 2026 { 2027 dest->size = cpu_to_le32(sizeof(*dest)); 2028 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2029 dest->formats = src->formats; 2030 dest->rates = src->rates; 2031 dest->rate_min = src->rate_min; 2032 dest->rate_max = src->rate_max; 2033 dest->channels_min = src->channels_min; 2034 dest->channels_max = src->channels_max; 2035 dest->periods_min = src->periods_min; 2036 dest->periods_max = src->periods_max; 2037 dest->period_size_min = src->period_size_min; 2038 dest->period_size_max = src->period_size_max; 2039 dest->buffer_size_min = src->buffer_size_min; 2040 dest->buffer_size_max = src->buffer_size_max; 2041 } 2042 2043 /** 2044 * pcm_new_ver - Create the new version of PCM from the old version. 2045 * @tplg: topology context 2046 * @src: older version of pcm as a source 2047 * @pcm: latest version of pcm created from the source 2048 * 2049 * Support from vesion 4. User should free the returned pcm manually. 2050 */ 2051 static int pcm_new_ver(struct soc_tplg *tplg, 2052 struct snd_soc_tplg_pcm *src, 2053 struct snd_soc_tplg_pcm **pcm) 2054 { 2055 struct snd_soc_tplg_pcm *dest; 2056 struct snd_soc_tplg_pcm_v4 *src_v4; 2057 int i; 2058 2059 *pcm = NULL; 2060 2061 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 2062 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 2063 return -EINVAL; 2064 } 2065 2066 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 2067 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 2068 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2069 if (!dest) 2070 return -ENOMEM; 2071 2072 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2073 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2074 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2075 dest->pcm_id = src_v4->pcm_id; 2076 dest->dai_id = src_v4->dai_id; 2077 dest->playback = src_v4->playback; 2078 dest->capture = src_v4->capture; 2079 dest->compress = src_v4->compress; 2080 dest->num_streams = src_v4->num_streams; 2081 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2082 memcpy(&dest->stream[i], &src_v4->stream[i], 2083 sizeof(struct snd_soc_tplg_stream)); 2084 2085 for (i = 0; i < 2; i++) 2086 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2087 2088 *pcm = dest; 2089 return 0; 2090 } 2091 2092 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2093 struct snd_soc_tplg_hdr *hdr) 2094 { 2095 struct snd_soc_tplg_pcm *pcm, *_pcm; 2096 int count; 2097 int size; 2098 int i; 2099 bool abi_match; 2100 int ret; 2101 2102 count = le32_to_cpu(hdr->count); 2103 2104 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 2105 return 0; 2106 2107 /* check the element size and count */ 2108 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2109 size = le32_to_cpu(pcm->size); 2110 if (size > sizeof(struct snd_soc_tplg_pcm) 2111 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2112 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2113 size); 2114 return -EINVAL; 2115 } 2116 2117 if (soc_tplg_check_elem_count(tplg, 2118 size, count, 2119 le32_to_cpu(hdr->payload_size), 2120 "PCM DAI")) { 2121 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2122 count); 2123 return -EINVAL; 2124 } 2125 2126 for (i = 0; i < count; i++) { 2127 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2128 size = le32_to_cpu(pcm->size); 2129 2130 /* check ABI version by size, create a new version of pcm 2131 * if abi not match. 2132 */ 2133 if (size == sizeof(*pcm)) { 2134 abi_match = true; 2135 _pcm = pcm; 2136 } else { 2137 abi_match = false; 2138 ret = pcm_new_ver(tplg, pcm, &_pcm); 2139 if (ret < 0) 2140 return ret; 2141 } 2142 2143 /* create the FE DAIs and DAI links */ 2144 ret = soc_tplg_pcm_create(tplg, _pcm); 2145 if (ret < 0) { 2146 if (!abi_match) 2147 kfree(_pcm); 2148 return ret; 2149 } 2150 2151 /* offset by version-specific struct size and 2152 * real priv data size 2153 */ 2154 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2155 2156 if (!abi_match) 2157 kfree(_pcm); /* free the duplicated one */ 2158 } 2159 2160 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2161 2162 return 0; 2163 } 2164 2165 /** 2166 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2167 * @link: &snd_soc_dai_link which should be updated 2168 * @cfg: physical link configs. 2169 * 2170 * Topology context contains a list of supported HW formats (configs) and 2171 * a default format ID for the physical link. This function will use this 2172 * default ID to choose the HW format to set the link's DAI format for init. 2173 */ 2174 static void set_link_hw_format(struct snd_soc_dai_link *link, 2175 struct snd_soc_tplg_link_config *cfg) 2176 { 2177 struct snd_soc_tplg_hw_config *hw_config; 2178 unsigned char bclk_master, fsync_master; 2179 unsigned char invert_bclk, invert_fsync; 2180 int i; 2181 2182 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2183 hw_config = &cfg->hw_config[i]; 2184 if (hw_config->id != cfg->default_hw_config_id) 2185 continue; 2186 2187 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2188 SND_SOC_DAIFMT_FORMAT_MASK; 2189 2190 /* clock gating */ 2191 switch (hw_config->clock_gated) { 2192 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2193 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2194 break; 2195 2196 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2197 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2198 break; 2199 2200 default: 2201 /* ignore the value */ 2202 break; 2203 } 2204 2205 /* clock signal polarity */ 2206 invert_bclk = hw_config->invert_bclk; 2207 invert_fsync = hw_config->invert_fsync; 2208 if (!invert_bclk && !invert_fsync) 2209 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2210 else if (!invert_bclk && invert_fsync) 2211 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2212 else if (invert_bclk && !invert_fsync) 2213 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2214 else 2215 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2216 2217 /* clock masters */ 2218 bclk_master = (hw_config->bclk_master == 2219 SND_SOC_TPLG_BCLK_CM); 2220 fsync_master = (hw_config->fsync_master == 2221 SND_SOC_TPLG_FSYNC_CM); 2222 if (bclk_master && fsync_master) 2223 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2224 else if (!bclk_master && fsync_master) 2225 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2226 else if (bclk_master && !fsync_master) 2227 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2228 else 2229 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2230 } 2231 } 2232 2233 /** 2234 * link_new_ver - Create a new physical link config from the old 2235 * version of source. 2236 * @tplg: topology context 2237 * @src: old version of phyical link config as a source 2238 * @link: latest version of physical link config created from the source 2239 * 2240 * Support from vesion 4. User need free the returned link config manually. 2241 */ 2242 static int link_new_ver(struct soc_tplg *tplg, 2243 struct snd_soc_tplg_link_config *src, 2244 struct snd_soc_tplg_link_config **link) 2245 { 2246 struct snd_soc_tplg_link_config *dest; 2247 struct snd_soc_tplg_link_config_v4 *src_v4; 2248 int i; 2249 2250 *link = NULL; 2251 2252 if (le32_to_cpu(src->size) != 2253 sizeof(struct snd_soc_tplg_link_config_v4)) { 2254 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2255 return -EINVAL; 2256 } 2257 2258 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2259 2260 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2261 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2262 if (!dest) 2263 return -ENOMEM; 2264 2265 dest->size = cpu_to_le32(sizeof(*dest)); 2266 dest->id = src_v4->id; 2267 dest->num_streams = src_v4->num_streams; 2268 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2269 memcpy(&dest->stream[i], &src_v4->stream[i], 2270 sizeof(struct snd_soc_tplg_stream)); 2271 2272 *link = dest; 2273 return 0; 2274 } 2275 2276 /** 2277 * snd_soc_find_dai_link - Find a DAI link 2278 * 2279 * @card: soc card 2280 * @id: DAI link ID to match 2281 * @name: DAI link name to match, optional 2282 * @stream_name: DAI link stream name to match, optional 2283 * 2284 * This function will search all existing DAI links of the soc card to 2285 * find the link of the same ID. Since DAI links may not have their 2286 * unique ID, so name and stream name should also match if being 2287 * specified. 2288 * 2289 * Return: pointer of DAI link, or NULL if not found. 2290 */ 2291 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2292 int id, const char *name, 2293 const char *stream_name) 2294 { 2295 struct snd_soc_pcm_runtime *rtd; 2296 struct snd_soc_dai_link *link; 2297 2298 for_each_card_rtds(card, rtd) { 2299 link = rtd->dai_link; 2300 2301 if (link->id != id) 2302 continue; 2303 2304 if (name && (!link->name || strcmp(name, link->name))) 2305 continue; 2306 2307 if (stream_name && (!link->stream_name 2308 || strcmp(stream_name, link->stream_name))) 2309 continue; 2310 2311 return link; 2312 } 2313 2314 return NULL; 2315 } 2316 2317 /* Find and configure an existing physical DAI link */ 2318 static int soc_tplg_link_config(struct soc_tplg *tplg, 2319 struct snd_soc_tplg_link_config *cfg) 2320 { 2321 struct snd_soc_dai_link *link; 2322 const char *name, *stream_name; 2323 size_t len; 2324 int ret; 2325 2326 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2327 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2328 return -EINVAL; 2329 else if (len) 2330 name = cfg->name; 2331 else 2332 name = NULL; 2333 2334 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2335 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2336 return -EINVAL; 2337 else if (len) 2338 stream_name = cfg->stream_name; 2339 else 2340 stream_name = NULL; 2341 2342 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2343 name, stream_name); 2344 if (!link) { 2345 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2346 name, cfg->id); 2347 return -EINVAL; 2348 } 2349 2350 /* hw format */ 2351 if (cfg->num_hw_configs) 2352 set_link_hw_format(link, cfg); 2353 2354 /* flags */ 2355 if (cfg->flag_mask) 2356 set_link_flags(link, 2357 le32_to_cpu(cfg->flag_mask), 2358 le32_to_cpu(cfg->flags)); 2359 2360 /* pass control to component driver for optional further init */ 2361 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2362 if (ret < 0) { 2363 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2364 return ret; 2365 } 2366 2367 /* for unloading it in snd_soc_tplg_component_remove */ 2368 link->dobj.index = tplg->index; 2369 link->dobj.ops = tplg->ops; 2370 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2371 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2372 2373 return 0; 2374 } 2375 2376 2377 /* Load physical link config elements from the topology context */ 2378 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2379 struct snd_soc_tplg_hdr *hdr) 2380 { 2381 struct snd_soc_tplg_link_config *link, *_link; 2382 int count; 2383 int size; 2384 int i, ret; 2385 bool abi_match; 2386 2387 count = le32_to_cpu(hdr->count); 2388 2389 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2390 tplg->pos += le32_to_cpu(hdr->size) + 2391 le32_to_cpu(hdr->payload_size); 2392 return 0; 2393 } 2394 2395 /* check the element size and count */ 2396 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2397 size = le32_to_cpu(link->size); 2398 if (size > sizeof(struct snd_soc_tplg_link_config) 2399 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2400 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2401 size); 2402 return -EINVAL; 2403 } 2404 2405 if (soc_tplg_check_elem_count(tplg, 2406 size, count, 2407 le32_to_cpu(hdr->payload_size), 2408 "physical link config")) { 2409 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2410 count); 2411 return -EINVAL; 2412 } 2413 2414 /* config physical DAI links */ 2415 for (i = 0; i < count; i++) { 2416 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2417 size = le32_to_cpu(link->size); 2418 if (size == sizeof(*link)) { 2419 abi_match = true; 2420 _link = link; 2421 } else { 2422 abi_match = false; 2423 ret = link_new_ver(tplg, link, &_link); 2424 if (ret < 0) 2425 return ret; 2426 } 2427 2428 ret = soc_tplg_link_config(tplg, _link); 2429 if (ret < 0) { 2430 if (!abi_match) 2431 kfree(_link); 2432 return ret; 2433 } 2434 2435 /* offset by version-specific struct size and 2436 * real priv data size 2437 */ 2438 tplg->pos += size + le32_to_cpu(_link->priv.size); 2439 2440 if (!abi_match) 2441 kfree(_link); /* free the duplicated one */ 2442 } 2443 2444 return 0; 2445 } 2446 2447 /** 2448 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2449 * @tplg: topology context 2450 * @d: physical DAI configs. 2451 * 2452 * The physical dai should already be registered by the platform driver. 2453 * The platform driver should specify the DAI name and ID for matching. 2454 */ 2455 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2456 struct snd_soc_tplg_dai *d) 2457 { 2458 struct snd_soc_dai_link_component dai_component; 2459 struct snd_soc_dai *dai; 2460 struct snd_soc_dai_driver *dai_drv; 2461 struct snd_soc_pcm_stream *stream; 2462 struct snd_soc_tplg_stream_caps *caps; 2463 int ret; 2464 2465 memset(&dai_component, 0, sizeof(dai_component)); 2466 2467 dai_component.dai_name = d->dai_name; 2468 dai = snd_soc_find_dai(&dai_component); 2469 if (!dai) { 2470 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2471 d->dai_name); 2472 return -EINVAL; 2473 } 2474 2475 if (le32_to_cpu(d->dai_id) != dai->id) { 2476 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2477 d->dai_name); 2478 return -EINVAL; 2479 } 2480 2481 dai_drv = dai->driver; 2482 if (!dai_drv) 2483 return -EINVAL; 2484 2485 if (d->playback) { 2486 stream = &dai_drv->playback; 2487 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2488 ret = set_stream_info(stream, caps); 2489 if (ret < 0) 2490 goto err; 2491 } 2492 2493 if (d->capture) { 2494 stream = &dai_drv->capture; 2495 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2496 ret = set_stream_info(stream, caps); 2497 if (ret < 0) 2498 goto err; 2499 } 2500 2501 if (d->flag_mask) 2502 set_dai_flags(dai_drv, 2503 le32_to_cpu(d->flag_mask), 2504 le32_to_cpu(d->flags)); 2505 2506 /* pass control to component driver for optional further init */ 2507 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2508 if (ret < 0) { 2509 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2510 goto err; 2511 } 2512 2513 return 0; 2514 2515 err: 2516 kfree(dai_drv->playback.stream_name); 2517 kfree(dai_drv->capture.stream_name); 2518 return ret; 2519 } 2520 2521 /* load physical DAI elements */ 2522 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2523 struct snd_soc_tplg_hdr *hdr) 2524 { 2525 struct snd_soc_tplg_dai *dai; 2526 int count; 2527 int i, ret; 2528 2529 count = le32_to_cpu(hdr->count); 2530 2531 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2532 return 0; 2533 2534 /* config the existing BE DAIs */ 2535 for (i = 0; i < count; i++) { 2536 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2537 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2538 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2539 return -EINVAL; 2540 } 2541 2542 ret = soc_tplg_dai_config(tplg, dai); 2543 if (ret < 0) { 2544 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2545 return ret; 2546 } 2547 2548 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2549 } 2550 2551 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2552 return 0; 2553 } 2554 2555 /** 2556 * manifest_new_ver - Create a new version of manifest from the old version 2557 * of source. 2558 * @tplg: topology context 2559 * @src: old version of manifest as a source 2560 * @manifest: latest version of manifest created from the source 2561 * 2562 * Support from vesion 4. Users need free the returned manifest manually. 2563 */ 2564 static int manifest_new_ver(struct soc_tplg *tplg, 2565 struct snd_soc_tplg_manifest *src, 2566 struct snd_soc_tplg_manifest **manifest) 2567 { 2568 struct snd_soc_tplg_manifest *dest; 2569 struct snd_soc_tplg_manifest_v4 *src_v4; 2570 int size; 2571 2572 *manifest = NULL; 2573 2574 size = le32_to_cpu(src->size); 2575 if (size != sizeof(*src_v4)) { 2576 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2577 size); 2578 if (size) 2579 return -EINVAL; 2580 src->size = cpu_to_le32(sizeof(*src_v4)); 2581 } 2582 2583 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2584 2585 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2586 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2587 GFP_KERNEL); 2588 if (!dest) 2589 return -ENOMEM; 2590 2591 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2592 dest->control_elems = src_v4->control_elems; 2593 dest->widget_elems = src_v4->widget_elems; 2594 dest->graph_elems = src_v4->graph_elems; 2595 dest->pcm_elems = src_v4->pcm_elems; 2596 dest->dai_link_elems = src_v4->dai_link_elems; 2597 dest->priv.size = src_v4->priv.size; 2598 if (dest->priv.size) 2599 memcpy(dest->priv.data, src_v4->priv.data, 2600 le32_to_cpu(src_v4->priv.size)); 2601 2602 *manifest = dest; 2603 return 0; 2604 } 2605 2606 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2607 struct snd_soc_tplg_hdr *hdr) 2608 { 2609 struct snd_soc_tplg_manifest *manifest, *_manifest; 2610 bool abi_match; 2611 int ret = 0; 2612 2613 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2614 return 0; 2615 2616 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2617 2618 /* check ABI version by size, create a new manifest if abi not match */ 2619 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2620 abi_match = true; 2621 _manifest = manifest; 2622 } else { 2623 abi_match = false; 2624 ret = manifest_new_ver(tplg, manifest, &_manifest); 2625 if (ret < 0) 2626 return ret; 2627 } 2628 2629 /* pass control to component driver for optional further init */ 2630 if (tplg->ops && tplg->ops->manifest) 2631 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2632 2633 if (!abi_match) /* free the duplicated one */ 2634 kfree(_manifest); 2635 2636 return ret; 2637 } 2638 2639 /* validate header magic, size and type */ 2640 static int soc_valid_header(struct soc_tplg *tplg, 2641 struct snd_soc_tplg_hdr *hdr) 2642 { 2643 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2644 return 0; 2645 2646 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2647 dev_err(tplg->dev, 2648 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2649 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2650 tplg->fw->size); 2651 return -EINVAL; 2652 } 2653 2654 /* big endian firmware objects not supported atm */ 2655 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2656 dev_err(tplg->dev, 2657 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2658 tplg->pass, hdr->magic, 2659 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2660 return -EINVAL; 2661 } 2662 2663 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2664 dev_err(tplg->dev, 2665 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2666 tplg->pass, hdr->magic, 2667 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2668 return -EINVAL; 2669 } 2670 2671 /* Support ABI from version 4 */ 2672 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2673 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2674 dev_err(tplg->dev, 2675 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2676 tplg->pass, hdr->abi, 2677 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2678 tplg->fw->size); 2679 return -EINVAL; 2680 } 2681 2682 if (hdr->payload_size == 0) { 2683 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2684 soc_tplg_get_hdr_offset(tplg)); 2685 return -EINVAL; 2686 } 2687 2688 if (tplg->pass == le32_to_cpu(hdr->type)) 2689 dev_dbg(tplg->dev, 2690 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2691 hdr->payload_size, hdr->type, hdr->version, 2692 hdr->vendor_type, tplg->pass); 2693 2694 return 1; 2695 } 2696 2697 /* check header type and call appropriate handler */ 2698 static int soc_tplg_load_header(struct soc_tplg *tplg, 2699 struct snd_soc_tplg_hdr *hdr) 2700 { 2701 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2702 2703 /* check for matching ID */ 2704 if (le32_to_cpu(hdr->index) != tplg->req_index && 2705 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2706 return 0; 2707 2708 tplg->index = le32_to_cpu(hdr->index); 2709 2710 switch (le32_to_cpu(hdr->type)) { 2711 case SND_SOC_TPLG_TYPE_MIXER: 2712 case SND_SOC_TPLG_TYPE_ENUM: 2713 case SND_SOC_TPLG_TYPE_BYTES: 2714 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2715 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2716 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2717 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2718 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2719 case SND_SOC_TPLG_TYPE_PCM: 2720 return soc_tplg_pcm_elems_load(tplg, hdr); 2721 case SND_SOC_TPLG_TYPE_DAI: 2722 return soc_tplg_dai_elems_load(tplg, hdr); 2723 case SND_SOC_TPLG_TYPE_DAI_LINK: 2724 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2725 /* physical link configurations */ 2726 return soc_tplg_link_elems_load(tplg, hdr); 2727 case SND_SOC_TPLG_TYPE_MANIFEST: 2728 return soc_tplg_manifest_load(tplg, hdr); 2729 default: 2730 /* bespoke vendor data object */ 2731 return soc_tplg_vendor_load(tplg, hdr); 2732 } 2733 2734 return 0; 2735 } 2736 2737 /* process the topology file headers */ 2738 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2739 { 2740 struct snd_soc_tplg_hdr *hdr; 2741 int ret; 2742 2743 tplg->pass = SOC_TPLG_PASS_START; 2744 2745 /* process the header types from start to end */ 2746 while (tplg->pass <= SOC_TPLG_PASS_END) { 2747 2748 tplg->hdr_pos = tplg->fw->data; 2749 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2750 2751 while (!soc_tplg_is_eof(tplg)) { 2752 2753 /* make sure header is valid before loading */ 2754 ret = soc_valid_header(tplg, hdr); 2755 if (ret < 0) 2756 return ret; 2757 else if (ret == 0) 2758 break; 2759 2760 /* load the header object */ 2761 ret = soc_tplg_load_header(tplg, hdr); 2762 if (ret < 0) 2763 return ret; 2764 2765 /* goto next header */ 2766 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2767 sizeof(struct snd_soc_tplg_hdr); 2768 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2769 } 2770 2771 /* next data type pass */ 2772 tplg->pass++; 2773 } 2774 2775 /* signal DAPM we are complete */ 2776 ret = soc_tplg_dapm_complete(tplg); 2777 if (ret < 0) 2778 dev_err(tplg->dev, 2779 "ASoC: failed to initialise DAPM from Firmware\n"); 2780 2781 return ret; 2782 } 2783 2784 static int soc_tplg_load(struct soc_tplg *tplg) 2785 { 2786 int ret; 2787 2788 ret = soc_tplg_process_headers(tplg); 2789 if (ret == 0) 2790 soc_tplg_complete(tplg); 2791 2792 return ret; 2793 } 2794 2795 /* load audio component topology from "firmware" file */ 2796 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2797 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2798 { 2799 struct soc_tplg tplg; 2800 int ret; 2801 2802 /* component needs to exist to keep and reference data while parsing */ 2803 if (!comp) 2804 return -EINVAL; 2805 2806 /* setup parsing context */ 2807 memset(&tplg, 0, sizeof(tplg)); 2808 tplg.fw = fw; 2809 tplg.dev = comp->dev; 2810 tplg.comp = comp; 2811 tplg.ops = ops; 2812 tplg.req_index = id; 2813 tplg.io_ops = ops->io_ops; 2814 tplg.io_ops_count = ops->io_ops_count; 2815 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2816 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2817 2818 ret = soc_tplg_load(&tplg); 2819 /* free the created components if fail to load topology */ 2820 if (ret) 2821 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2822 2823 return ret; 2824 } 2825 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2826 2827 /* remove this dynamic widget */ 2828 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2829 { 2830 /* make sure we are a widget */ 2831 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2832 return; 2833 2834 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2835 } 2836 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2837 2838 /* remove all dynamic widgets from this DAPM context */ 2839 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2840 u32 index) 2841 { 2842 struct snd_soc_dapm_widget *w, *next_w; 2843 2844 for_each_card_widgets_safe(dapm->card, w, next_w) { 2845 2846 /* make sure we are a widget with correct context */ 2847 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2848 continue; 2849 2850 /* match ID */ 2851 if (w->dobj.index != index && 2852 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2853 continue; 2854 /* check and free and dynamic widget kcontrols */ 2855 snd_soc_tplg_widget_remove(w); 2856 snd_soc_dapm_free_widget(w); 2857 } 2858 snd_soc_dapm_reset_cache(dapm); 2859 } 2860 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2861 2862 /* remove dynamic controls from the component driver */ 2863 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2864 { 2865 struct snd_soc_dobj *dobj, *next_dobj; 2866 int pass = SOC_TPLG_PASS_END; 2867 2868 /* process the header types from end to start */ 2869 while (pass >= SOC_TPLG_PASS_START) { 2870 2871 /* remove mixer controls */ 2872 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2873 list) { 2874 2875 /* match index */ 2876 if (dobj->index != index && 2877 index != SND_SOC_TPLG_INDEX_ALL) 2878 continue; 2879 2880 switch (dobj->type) { 2881 case SND_SOC_DOBJ_MIXER: 2882 remove_mixer(comp, dobj, pass); 2883 break; 2884 case SND_SOC_DOBJ_ENUM: 2885 remove_enum(comp, dobj, pass); 2886 break; 2887 case SND_SOC_DOBJ_BYTES: 2888 remove_bytes(comp, dobj, pass); 2889 break; 2890 case SND_SOC_DOBJ_GRAPH: 2891 remove_route(comp, dobj, pass); 2892 break; 2893 case SND_SOC_DOBJ_WIDGET: 2894 remove_widget(comp, dobj, pass); 2895 break; 2896 case SND_SOC_DOBJ_PCM: 2897 remove_dai(comp, dobj, pass); 2898 break; 2899 case SND_SOC_DOBJ_DAI_LINK: 2900 remove_link(comp, dobj, pass); 2901 break; 2902 case SND_SOC_DOBJ_BACKEND_LINK: 2903 /* 2904 * call link_unload ops if extra 2905 * deinitialization is needed. 2906 */ 2907 remove_backend_link(comp, dobj, pass); 2908 break; 2909 default: 2910 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2911 dobj->type); 2912 break; 2913 } 2914 } 2915 pass--; 2916 } 2917 2918 /* let caller know if FW can be freed when no objects are left */ 2919 return !list_empty(&comp->dobj_list); 2920 } 2921 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2922